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This will disable blank selection in Rx-Universe (Rx-Universe will not even attempt to select donor blanks), including base curve selection. If a particular base curve is desired for a job, this can be entered in the "Base curve" field under Lens Selection; for example, to request a 750-base lens, the entry would be as follows:
Freeblank Designs
Essilor has some designs that allow the lab to select the donor blanks to use, and send the technical data of the blanks to DEO, similar to how other LDS vendors allow almost any donor blank to be used.
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In addition to the __FREEBLANK entry (note that this is TWO underscore characters followed by FREEBLANK), the lens design must be set up to allow Rx-Universe to do blank selection, including setting up a base curve chart for selection. There are no "suggested" base curve charts from Essilor for Freeblank designs, so the lab is free to use any chart desired. There is a "generic" digital selection chart (84) which the lab may choose to try out. If using this chart, the option "Add add to sphere" should be checked, and the option "LDS selects blanks to use" should NOT be checked. An alias entry will also be required to identify the blanks that should be selected for the freeblank design.
LNAM codes for Essilor
LNAM codes for Essilor designs (freeblank or otherwise) are 6 character codes that identify the design, the material, the color and the coating. Therefore, the LNAM is not set in the lens style itself (since it is different based on material, color and coating), but rather is set in a VCA label table. There are two "standard" Essilor tables maintained for Rx-Universe - table "ESS" for Essilor designs in North America, and table "ESSL" for Essilor designs in Latin America. When setting up the Essilor digital type, the DS record must be set up to reference the appropriate table on the "Other tab": 
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The different combinations of material, design, treatment (coating) and color (tint) have different LNAM values which are sent to DEO.
Switching To Short Corridor Designs
For many designs, Essilor offers the design in regular and short. The LMS is responsible for switching to the short design if the seg height of the order is < X (usually 18mm), and the add power is <= 3.00D. (If the add is > 3.00, the regular design is used regardless of the seg height).
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When design PHEAZ is used on an order, OMICS will check the alias file, and will switch to the PHEAZS design if the seg height of the order is < than the minimum specified for the requested design, and if the add power is less than the maximum add power specified on the alias lens style. Multiple alias records can be specified, to allow checking multiple lens styles (ie several corridor lengths).
DLP polishers
DLP-Server
If DLP-Server is being used with Essilor Digital, there are some specific rules that are in effect:
1) For an Essilor Digital job, LAPBASX and LAPCRSX should be expressed in mm and not diopter
2) For any job that is not Essilor Digital, LAPBASX and LAPCRSX should not be sent at all to the DLP. The macros will be selected using GBASEX and GCROSX.
To set this, first, the DLP-Server must be identified as such in the device setup - this is done in the "Device Specific Parameters" on the Digital tab of the device interface:
When an LMS file is received from Essilor, if the LAPBASX and LAPCRSX are expressed in mm, these values will be saved as PROC records, and then sent (only) to a DLP-Server:
If the LAPBASX and LAPCRSX values are sent from Essilor in D, they will be converted to mm when sent to the DLP-Server.
When the DLP-Server requests an Essilor Digital job, the packet will include LAPBASX and LAPCRSX, in addition to GBASEX and GCROSX (assuming all are requested in the initialization by the device):
For a job which is not Essilor Digital, Rx-Universe will suppress the LAPBASX and LAPCRSX labels - with the same INI string as the previous example, 
The LAPBASX and LAPCRSX labels are omitted from the response.
Barcode
If the DLP polishers are used for Essilor digital, in a non-interfaced mode, and the lab wishes to print the DLP barcode on the ticket, this is now possible.
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